Syncthing for Mac

Major changes

• Database backend switched from LevelDB to SQLite. There is a migration on
• first launch which can be lengthy for larger setups. The new database is
• easier to understand and maintain and, hopefully, less buggy.
• The logging format has changed to use structured log entries (a message
• plus several key-value pairs). Additionally, we can now control the log
• level per package, and a new log level WARNING has been inserted between
• INFO and ERROR (which was previously known as WARNING...). The INFO level
• has become more verbose, indicating the sync actions taken by Syncthing. A
• new command line flag --log-level sets the default log level for all
• packages, and the STTRACE environment variable and GUI has been updated
• to set log levels per package. The --verbose and --logflags command
• line options have been removed and will be ignored if given.
• Deleted items are no longer kept forever in the database, instead they are
• forgotten after fifteen months. If your use case require deletes to take
• effect after more than a fifteen month delay, set the
• --db-delete-retention-interval command line option or corresponding
• environment variable to zero, or a longer time interval of your choosing.
• Modernised command line options parsing. Old single-dash long options are
• no longer supported, e.g. -home must be given as --home. Some options
• have been renamed, others have become subcommands. All serve options are
• now also accepted as environment variables. See syncthing --help and
• syncthing serve --help for details.
• Rolling hash detection of shifted data is no longer supported as this
• effectively never helped. Instead, scanning and syncing is faster and more
• efficient without it.
• A "default folder" is no longer created on first startup.
• Multiple connections are now used by default between v2 devices. The new
• default value is to use three connections: one for index metadata and two
• for data exchange.
• The following platforms unfortunately no longer get prebuilt binaries for
• download at syncthing.net and on GitHub, due to complexities related to
• cross compilation with SQLite:
  • dragonfly/amd64
  • solaris/amd64
  • linux/ppc64
  • netbsd/*
  • openbsd/386 and openbsd/arm
  • windows/arm
• The handling of conflict resolution involving deleted files has changed. A
• delete can now be the winning outcome of conflict resolution, resulting in
• the deleted file being moved to a conflict copy.

This release is also available as:

• APT repository: https://apt.syncthing.net/
• Docker image: docker.io/syncthing/syncthing:2.0.15 or ghcr.io/syncthing/syncthing:2.0.15
• ({docker,ghcr}.io/syncthing/syncthing:2 to follow just the major version)

What's Changed

Fixes

• fix(gui): show restarting modal during upgrade restart (fixes #1248) by @steadytao in #10566
• fix(gui): remove width limit for language select items by @EastSun5566 in #10531

Other

• chore(gui): add id and name to Stay logged in checkbox for password managers by @epifeny in #10558
• chore(db): add ability to wait for programmatically started database maintenance, query last maintenance time by @pixelspark in #10565
• chore(etc): add comprehensive sandboxing by @Valloric in #10421
• chore: build with Go 1.26; use Go 1.25 features by @calmh in #10570